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FX-1PG/FX
-1PG PULSE GENERATOR UNIT
2N
6
6.3
Two-Speed Positioning Operation and
External Command Positioning Opera-
tion
[5] Two-speed positioning operation
The motor performs the following operation by the
two-speed positioning operation command. Approach
at high speed as well as processing and moving forward
at low speed can be performed.
Speed
V (I)
V
bia
Start
Travel P (I)
When the start command is received, the motor
performs positioning at the operating speed V(I) (BFMs
#20 and #19) until the set position P(I) (BFMs #18 and
#17), then at the operating speed V(II) (BFMs #24 and
#23) until the set position P(II) (BFMs #22 and #21)
(two-step speed).
[6] External command positioning operation
Commands for determining the deceleration start point
and the stop point are given from the external limit
switches. The PGU does not control the pulse quantity,
and positioning is performed by the two-step speed
technique.
Speed
V
max
V (II)
When the start command is received, the motor
performs positioning at the operating speed V(I) (BFMs
#20 and #19) until the deceleration command is
received. When the deceleration command is received,
the motor decelerates to the operating speed V(II)
Travel P (II)
(BFMs #24 and #23). When the stop command is
received, pulse generation is stopped immediately.
The rotation direction is determined by the sign (positive
or negative) of the speed command V(I).
• These operation modes are determined by the
contents of the operation command BFM #25.
(Refer to Section 5.5.)
For the BFM Nos. required to be set in each
operation mode, refer to Section 6.6.
OUTLINE OF OPERATION MODES
V
max
V (I)
V (II)
V
bia
Start
Deceleration
Stop
command
command
(DOG input)
(STOP input)
6-7
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